Northstar Engines and System Technical Discussion Discussion, Rubber gone in the top motor mounts in Cadillac Engine Technical Discussion; I have a 94 eldo ETC with 132K. Car runs great. I noticed the rubber is almost gone on the ...
I have a 94 eldo ETC with 132K. Car runs great. I noticed the rubber is almost gone on the top motor mounts. I heard this causes a loss in isolation. But what are the effects of lost isololation? What happens when the rubber is completly gone?
Automobile(s): White Diamond '03 DHS (with DTS floor shift)
Re: Rubber gone in the top motor mounts
Being a transverse mounted engine, everytime you open the throttle the engine tends to rotate or rock fore or aft depending on if you are in forward gear or reverse. The dogbones are there to prevent that. If the rubber is missing then there is no "isolation" between the metal parts and you will likely hear a clunking sound everytime you get on or off the throttle.
....and the extra movement allowed by the missing elastomer in the torque struts will put extra load on the other engine and trans mounts shortening their life....replace the dog bones if the rubber is degradating.